大约有 42,000 项符合查询结果(耗时:0.0523秒) [XML]
Redirecting stdout to “nothing” in python
... of sufficiently large number of modules, each printing something to the standard output. Now as the project has grown in size, there are large no. of print statements printing a lot on the std out which has made the program considerably slower.
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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Get path from open file in Python
...file.TemporaryFile you mentioned. This is specific case for temporary file and, as seen in the docs, there is already existing solution. tempfile.TemporaryFile is not meant to be used in case you want to read the name.
– Tadeck
Dec 6 '12 at 21:12
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Can I load a .NET assembly at runtime and instantiate a type knowing only the name?
...class implements a interface, so once I instantiate the class, I will then cast it to the interface.
13 Answers
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MYSQL Truncated incorrect DOUBLE value
...table1
WHERE 1
ORDER BY value1+0
The problem is ORDER BY value1+0 - type casting.
I know that it does not answer the question but this is the first result on Google for this error and it should have other examples where this error presents itself.
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MySQL - UPDATE query based on SELECT Query
...UPDATE
receipt_invoices dest,
(
SELECT
`receipt_id`,
CAST((net * 100) / 112 AS DECIMAL (11, 2)) witoutvat
FROM
receipt
WHERE CAST((net * 100) / 112 AS DECIMAL (11, 2)) != total
AND vat_percentage = 12
) src
SET
dest.price = src.witoutvat,
dest.amou...
How can I convert a zero-terminated byte array to string?
...
Just to be clear though, this is casting a sequence of bytes to something that is hopefully a valid UTF-8 string (and not say, Latin-1 etc., or some malformed UTF-8 sequence). Go will not check this for you when you cast.
– Cameron Kerr...
Import multiple csv files into pandas and concatenate into one DataFrame
I would like to read several csv files from a directory into pandas and concatenate them into one big DataFrame. I have not been able to figure it out though. Here is what I have so far:
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How to make the hardware beep sound in Mac OS X 10.6
... just want that Mac OS X 10.6 does a hardware beep sound like in open suse and other distributions. I tried following approaches
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How to check whether a file or directory exists?
...(err) { return false, nil }
return false, err
}
Edited to add error handling.
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